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-rw-r--r--drivers/s390/cio/qdio.c26
-rw-r--r--drivers/s390/crypto/ap_bus.c30
-rw-r--r--drivers/s390/crypto/ap_bus.h1
-rw-r--r--drivers/s390/crypto/zcrypt_api.c12
-rw-r--r--drivers/serial/sh-sci.c11
5 files changed, 54 insertions, 26 deletions
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index 5b1e3ff26c0..05fac0733f3 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -210,9 +210,11 @@ again:
goto again;
}
if (rc < 0) {
- QDIO_DBF_TEXT3(1,trace,"sqberr");
- sprintf(dbf_text,"%2x,%2x,%d,%d",tmp_cnt,*cnt,ccq,q_no);
- QDIO_DBF_TEXT3(1,trace,dbf_text);
+ QDIO_DBF_TEXT3(1,trace,"sqberr");
+ sprintf(dbf_text,"%2x,%2x",tmp_cnt,*cnt);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
+ sprintf(dbf_text,"%d,%d",ccq,q_no);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
QDIO_STATUS_LOOK_FOR_ERROR,
0, 0, 0, -1, -1, q->int_parm);
@@ -1250,7 +1252,6 @@ qdio_is_inbound_q_done(struct qdio_q *q)
if (!no_used) {
QDIO_DBF_TEXT4(0,trace,"inqisdnA");
QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
- QDIO_DBF_TEXT4(0,trace,dbf_text);
return 1;
}
if (irq->is_qebsm) {
@@ -3371,10 +3372,15 @@ qdio_do_qdio_fill_input(struct qdio_q *q, unsigned int qidx,
unsigned int count, struct qdio_buffer *buffers)
{
struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
+ int tmp = 0;
+
qidx &= (QDIO_MAX_BUFFERS_PER_Q - 1);
if (irq->is_qebsm) {
- while (count)
- set_slsb(q, &qidx, SLSB_CU_INPUT_EMPTY, &count);
+ while (count) {
+ tmp = set_slsb(q, &qidx, SLSB_CU_INPUT_EMPTY, &count);
+ if (!tmp)
+ return;
+ }
return;
}
for (;;) {
@@ -3390,11 +3396,15 @@ qdio_do_qdio_fill_output(struct qdio_q *q, unsigned int qidx,
unsigned int count, struct qdio_buffer *buffers)
{
struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
+ int tmp = 0;
qidx &= (QDIO_MAX_BUFFERS_PER_Q - 1);
if (irq->is_qebsm) {
- while (count)
- set_slsb(q, &qidx, SLSB_CU_OUTPUT_PRIMED, &count);
+ while (count) {
+ tmp = set_slsb(q, &qidx, SLSB_CU_OUTPUT_PRIMED, &count);
+ if (!tmp)
+ return;
+ }
return;
}
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index c7d1355237b..181b51772b1 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -65,6 +65,8 @@ module_param_named(poll_thread, ap_thread_flag, int, 0000);
MODULE_PARM_DESC(poll_thread, "Turn on/off poll thread, default is 1 (on).");
static struct device *ap_root_device = NULL;
+static DEFINE_SPINLOCK(ap_device_lock);
+static LIST_HEAD(ap_device_list);
/**
* Workqueue & timer for bus rescan.
@@ -457,6 +459,9 @@ static int ap_device_probe(struct device *dev)
int rc;
ap_dev->drv = ap_drv;
+ spin_lock_bh(&ap_device_lock);
+ list_add(&ap_dev->list, &ap_device_list);
+ spin_unlock_bh(&ap_device_lock);
rc = ap_drv->probe ? ap_drv->probe(ap_dev) : -ENODEV;
return rc;
}
@@ -497,6 +502,9 @@ static int ap_device_remove(struct device *dev)
ap_flush_queue(ap_dev);
if (ap_drv->remove)
ap_drv->remove(ap_dev);
+ spin_lock_bh(&ap_device_lock);
+ list_del_init(&ap_dev->list);
+ spin_unlock_bh(&ap_device_lock);
return 0;
}
@@ -772,6 +780,7 @@ static void ap_scan_bus(struct work_struct *unused)
spin_lock_init(&ap_dev->lock);
INIT_LIST_HEAD(&ap_dev->pendingq);
INIT_LIST_HEAD(&ap_dev->requestq);
+ INIT_LIST_HEAD(&ap_dev->list);
if (device_type == 0)
ap_probe_device_type(ap_dev);
else
@@ -1033,14 +1042,13 @@ static void ap_poll_timeout(unsigned long unused)
* polling until bit 2^0 of the control flags is not set. If bit 2^1
* of the control flags has been set arm the poll timer.
*/
-static int __ap_poll_all(struct device *dev, void *data)
+static int __ap_poll_all(struct ap_device *ap_dev, unsigned long *flags)
{
- struct ap_device *ap_dev = to_ap_dev(dev);
int rc;
spin_lock(&ap_dev->lock);
if (!ap_dev->unregistered) {
- rc = ap_poll_queue(to_ap_dev(dev), (unsigned long *) data);
+ rc = ap_poll_queue(ap_dev, flags);
if (rc)
ap_dev->unregistered = 1;
} else
@@ -1054,10 +1062,15 @@ static int __ap_poll_all(struct device *dev, void *data)
static void ap_poll_all(unsigned long dummy)
{
unsigned long flags;
+ struct ap_device *ap_dev;
do {
flags = 0;
- bus_for_each_dev(&ap_bus_type, NULL, &flags, __ap_poll_all);
+ spin_lock(&ap_device_lock);
+ list_for_each_entry(ap_dev, &ap_device_list, list) {
+ __ap_poll_all(ap_dev, &flags);
+ }
+ spin_unlock(&ap_device_lock);
} while (flags & 1);
if (flags & 2)
ap_schedule_poll_timer();
@@ -1075,6 +1088,7 @@ static int ap_poll_thread(void *data)
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
int requests;
+ struct ap_device *ap_dev;
set_user_nice(current, 19);
while (1) {
@@ -1092,10 +1106,12 @@ static int ap_poll_thread(void *data)
set_current_state(TASK_RUNNING);
remove_wait_queue(&ap_poll_wait, &wait);
- local_bh_disable();
flags = 0;
- bus_for_each_dev(&ap_bus_type, NULL, &flags, __ap_poll_all);
- local_bh_enable();
+ spin_lock_bh(&ap_device_lock);
+ list_for_each_entry(ap_dev, &ap_device_list, list) {
+ __ap_poll_all(ap_dev, &flags);
+ }
+ spin_unlock_bh(&ap_device_lock);
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&ap_poll_wait, &wait);
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 83b69c01cd6..008559ea742 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -106,6 +106,7 @@ struct ap_device {
struct device device;
struct ap_driver *drv; /* Pointer to AP device driver. */
spinlock_t lock; /* Per device lock. */
+ struct list_head list; /* private list of all AP devices. */
ap_qid_t qid; /* AP queue id. */
int queue_depth; /* AP queue depth.*/
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 99761391f34..e3625a47a59 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -298,14 +298,14 @@ static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex)
get_device(&zdev->ap_dev->device);
zdev->request_count++;
__zcrypt_decrease_preference(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+ spin_unlock_bh(&zcrypt_device_lock);
rc = zdev->ops->rsa_modexpo(zdev, mex);
+ spin_lock_bh(&zcrypt_device_lock);
module_put(zdev->ap_dev->drv->driver.owner);
}
else
rc = -EAGAIN;
- spin_lock_bh(&zcrypt_device_lock);
zdev->request_count--;
__zcrypt_increase_preference(zdev);
put_device(&zdev->ap_dev->device);
@@ -373,14 +373,14 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
get_device(&zdev->ap_dev->device);
zdev->request_count++;
__zcrypt_decrease_preference(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+ spin_unlock_bh(&zcrypt_device_lock);
rc = zdev->ops->rsa_modexpo_crt(zdev, crt);
+ spin_lock_bh(&zcrypt_device_lock);
module_put(zdev->ap_dev->drv->driver.owner);
}
else
rc = -EAGAIN;
- spin_lock_bh(&zcrypt_device_lock);
zdev->request_count--;
__zcrypt_increase_preference(zdev);
put_device(&zdev->ap_dev->device);
@@ -408,14 +408,14 @@ static long zcrypt_send_cprb(struct ica_xcRB *xcRB)
get_device(&zdev->ap_dev->device);
zdev->request_count++;
__zcrypt_decrease_preference(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+ spin_unlock_bh(&zcrypt_device_lock);
rc = zdev->ops->send_cprb(zdev, xcRB);
+ spin_lock_bh(&zcrypt_device_lock);
module_put(zdev->ap_dev->drv->driver.owner);
}
else
rc = -EAGAIN;
- spin_lock_bh(&zcrypt_device_lock);
zdev->request_count--;
__zcrypt_increase_preference(zdev);
put_device(&zdev->ap_dev->device);
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index c53b69610a5..46c40bbc4bc 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -17,6 +17,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
+#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
#undef DEBUG
@@ -49,11 +52,6 @@
#endif
#include <asm/sci.h>
-
-#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
#include "sh-sci.h"
struct sci_port {
@@ -645,6 +643,9 @@ static inline int sci_handle_breaks(struct uart_port *port)
struct tty_struct *tty = port->info->tty;
struct sci_port *s = &sci_ports[port->line];
+ if (uart_handle_break(port))
+ return 0;
+
if (!s->break_flag && status & SCxSR_BRK(port)) {
#if defined(CONFIG_CPU_SH3)
/* Debounce break */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 18:09:52 +0000